Labétalol - un bêta-bloquant

About labetalol

What is labetalol used for?

Labetalol is a type of beta blocker that is used to treat l'hypertension artérielle.

Most people with high blood pressure do not feel unwell, but it is important that your high blood pressure is treated even if you feel fine. This is because high blood pressure can be damaging to your blood vessels and can put a strain on your heart.

In particular, labetalol is one of the medicines of choice for treating high blood pressure during pregnancy.

How does labetalol work?

It works on your heart and blood vessels. It does this by blocking tiny areas (called receptors) where messages are received by your heart and blood vessels. As a result, the pressure of blood within your blood vessels is reduced, and your heart beats more slowly and with less force.

When it is given by injection, it reduces blood pressure quickly, and for this reason it is used to keep blood pressure down during surgery, and in people who have had a heart attack.

Side effects of labetalol

The most common side effects of labetalol are:

• Feeling dizzy or lightheaded.

• Se sentir somnolent ou fatigué.

• Sensation de nausée.

• Être malade (vomissements).

• Maux de tête.

• Cold fingers and toes.

You may also experience other side effects such as:

• Sommeil perturbé.

• Rythme cardiaque lent.

• Blocked nose.

• Swollen ankles.

• Sensations de picotement.

• Feeling depressed.

• Difficulté à uriner.

• Difficulty getting an erection (erectile dysfunction).

Vous trouverez une liste complète dans la notice d'information du fabricant fournie avec votre médicament. Les effets indésirables s'améliorent souvent à mesure que votre corps s'adapte au nouveau médicament, mais parlez-en à votre médecin ou pharmacien si l'un des effets suivants persiste ou devient gênant.

How to manage labetalol side effects

Si vous ressentez d'autres symptômes que vous pensez être dus au médicament, parlez-en à votre médecin ou à votre pharmacien pour obtenir des conseils supplémentaires.

Who should not take labetalol?

Some medicines are not suitable for people with certain conditions, and sometimes a medicine can only be used if extra care is taken. For these reasons, before you start taking labetalol it is important that your doctor knows:

• Si vous êtes enceinte ou si vous allaitez.

• Si vous avez de l'asthme ou tout autre trouble respiratoire.

• Si vous avez des problèmes avec le fonctionnement de votre foie.

• If you have poor circulation.

• Si vous avez le diabète (diabète sucré).

• Si vous avez un problème de peau appelé psoriasis.

• Si vous avez une affection provoquant une faiblesse musculaire, appelée myasthénie grave.

• If you have been told you have a slow heartbeat, heart failure, or heart block (a slow and irregular heartbeat).

• Si on vous a dit que vous avez des douleurs thoraciques causées par des spasmes des vaisseaux sanguins de votre cœur, appelées angine de Prinzmetal.

• Si vous prenez d'autres médicaments. Cela inclut tous les médicaments que vous prenez et qui sont disponibles à l'achat sans ordonnance, ainsi que les médicaments à base de plantes et les médecines complémentaires.

• Si vous avez déjà eu une réaction allergique à un médicament, ou si vous avez déjà eu une autre réaction allergique grave.

How to take labetalol

• Read the manufacturer's printed information leaflet from inside the pack. It will give you more information about labetalol and will provide you with a full list of the side-effects which you may experience from taking it.

• Take labetalol exactly as your doctor tells you to. It is usual to take two doses a day. The directions will be printed on the label of the pack of tablets to remind you about what the doctor said to you.

• Swallow the tablet with a drink of water. Take labetalol at a mealtime, or with something to eat.

• Si vous oubliez de prendre une dose, prenez-la dès que vous vous en souvenez (sauf s'il est presque l'heure de votre prochaine dose, auquel cas laissez de côté la dose oubliée). Ne prenez pas deux doses ensemble pour compenser une dose oubliée.

Tirer le meilleur parti de votre traitement

• Essayez de respecter vos rendez-vous réguliers avec votre médecin. Cela permet à votre médecin de suivre vos progrès.

• Treatment with labetalol is often long-term. Continue to take the tablets unless your doctor tells you to stop.

  • Stopping treatment suddenly can cause problems in some people, so your doctor may want you to reduce your dose gradually if this becomes necessary.

• Si vous devez subir une opération ou un traitement dentaire, il est important d'informer la personne effectuant le traitement que vous prenez un bêta-bloquant. Cela est particulièrement important si vous êtes susceptible de recevoir un anesthésique.

• Drinking alcohol while you are on labetalol is not recommended. Alcohol will add to the blood pressure-lowering effect of labetalol which will increase the chances of you experiencing side-effects such as feeling sleepy and dizzy.

• If you buy any medicines, check with a pharmacist that they are suitable for you to take with labetalol. Some medicines may not be (including some anti-inflammatory painkillers, and cold or flu remedies).

• Your doctor may give you dietary and lifestyle advice about eating a healthy diet, not smoking, and taking regular exercise. If so, it is important that you follow the advice you are given.

• If you have diabetes, labetalol can block the symptoms of low blood sugar. Your doctor will advise you about this.

How to store labetalol

• Gardez tous les médicaments hors de la portée et de la vue des enfants.

• Conserver dans un endroit frais et sec, à l'abri de la chaleur et de la lumière directes.

Informations importantes sur tous les médicaments

Questions fréquemment posées

Is labetalol safe in pregnancy?

Labetalol is often considered safe to use in pregnancy and is one of the first-choice medicines for managing high blood pressure during this time. Like all medicines, it should only be taken under the guidance of your doctor, who will weigh the benefits and risks for you and your baby.

What type of beta blocker is labetalol?

Labetalol is a non-selective beta blocker with additional alpha-blocking effects. This means it lowers blood pressure by slowing the heart rate and relaxing blood vessels.

What is the difference between metoprolol and labetalol?

Metoprolol and labetalol are both beta blockers, but they work slightly differently. Metoprolol is a selective beta-1 blocker, mainly affecting the heart to reduce heart rate and blood pressure. Labetalol is a non-selective beta blocker with added alpha-blocking effects, so it not only slows the heart but also relaxes blood vessels.